At 21 Months of Age,Pierre Has Acquired a Symbolic Thinking

question 95

Multiple Choice

At 21 months of age,Pierre has acquired a symbolic thinking system.Which substage of the sensorimotor stage is he in?

• A) Substage 3-secondary circular
• B) Substage 4-coordination of secondary schemes
• C) Substage 5-tertiary circular
• D) Substage 6-mental combinations

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